Apex domains cannot have CNAME records.
Question and response
Question
dig wpkrecords.com. NS
Answer
wpkrecords.com. 5 NS ns2.wpkrecords.com.
wpkrecords.com. 5 NS ns1.wpkrecords.com.
Authority
The response has no authority records.
Additional
ns1.wpkrecords.com. 5 A 51.89.235.195
ns2.wpkrecords.com. 5 A 51.77.98.183
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0